Answer:
x = 50 ounces
Step-by-step explanation:
call the capacity of bottle x ounce
Anna has a water bottle that is half full. -> x/2
After she drinks 15 fluid ounces from the bottle, it is only one-fifth full
-> (x/2)-15 = x/5
-> 3x/10 = 15
-> x = 50 ounces
Answer:
8 -------$ 12
Step-by-step explanation:
There are different weights of oranges at a farmer’s market given in the question. Two oranges that is three dollars. So one orange will be of one point five dollars. Then five will be equal to seven point five dollars. Much easier form of calculation that is eight equal to seven point five plus one point five that is added three times. This gives the final value of eight oranges that is twelve dollars.
8------12$
2 orange = 3$
So 1 = 1.5$
5 = 7.5$
8 = 7.5 + 1.5 + 1.5 + 1.5
8 oranges = 12$
Answer:
20
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
f(x) + g(x) = 3x² - 2 + 4x + 2 = 3x² + 4x
Substitute x = 2 into f(x) + g(x)
(f + g)(2) = 3(2)² + 4(2) = (3 × 4) + 8 = 12 + 8 = 20
Answer:
x = -3, 
Step-by-step explanation:
The given quadratic equation is: 
This can be written as: 
To solve a quadratic equation of the form 
we use the formula:
Here, a = 2; b = 3; c = - 9
Therefore, the roots of the equation are:
We get two values of 'x', viz.,
x = 
and 
⇒ x = -3, 3/2
Since the factors of the quadratic equation is asked, we write it as:
(x + 3)(x - ) = 0
because, if (x - a)(x - b) are the factors of a quadratic equation, then 'a' and 'b' are its roots.
Multiply (x + 3) and (x - to see that this indeed is the given quadratic equation.
Answer: the fourth one
Step-by-step explanation:
